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| author | Alan Stern <stern@rowland.harvard.edu> | 2007-04-25 23:15:43 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-04-28 00:28:42 +0400 |
| commit | 83f7d958eab2fbc6b159ee92bf1493924e1d0f72 (patch) | |
| tree | d1bb7f88a03bd8582ab5fb80f8a90fc598fb8814 /drivers/usb/core/sysfs.c | |
| parent | 6a02c996bce297a782432e29c69268356e97fadd (diff) | |
| download | linux-83f7d958eab2fbc6b159ee92bf1493924e1d0f72.tar.xz | |
USB: add "busnum" attribute for USB devices
This patch (as903) adds a "busnum" sysfs attribute for USB devices.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/sysfs.c')
| -rw-r--r-- | drivers/usb/core/sysfs.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 2ea47a38aefa..e7c982377488 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -118,6 +118,16 @@ show_speed(struct device *dev, struct device_attribute *attr, char *buf) static DEVICE_ATTR(speed, S_IRUGO, show_speed, NULL); static ssize_t +show_busnum(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct usb_device *udev; + + udev = to_usb_device(dev); + return sprintf(buf, "%d\n", udev->bus->busnum); +} +static DEVICE_ATTR(busnum, S_IRUGO, show_busnum, NULL); + +static ssize_t show_devnum(struct device *dev, struct device_attribute *attr, char *buf) { struct usb_device *udev; @@ -347,6 +357,7 @@ static struct attribute *dev_attrs[] = { &dev_attr_bNumConfigurations.attr, &dev_attr_bMaxPacketSize0.attr, &dev_attr_speed.attr, + &dev_attr_busnum.attr, &dev_attr_devnum.attr, &dev_attr_version.attr, &dev_attr_maxchild.attr, |